On top of scavenging air box is mounted a strong cast iron frame for each cylinder known as（）
A
举一反三
- （） of the A-frames there is a strong cast iron frame called the scavenging air box.
- At the top of the A-frames there is a strong cast iron frame called （）.
- On the top of the cylinder is mounted the cylinder cover which is pressed onto （） of the cylinder liner by means of nuts and studs.
- Each set is to be put in a cardboard box, strengthened with iron straps, and then put in a wooden case. It must be strong enough to ______ the roughest handling.
- Each set is to be put in a cardboard box, strengthened with iron straps, and then put in a wooden case. It must be strong enough to the roughest handling.
内容
- 0
The cast iron guide-ways for （） are attached to the top section and seal off the crankcase.
- 1
It is very necessary that each cylinder （） before the charged air is compressed.
- 2
Each cylinder is closed at the top by a （）， made of a special heat-resistant steel.
- 3
The cylinder block is a complicated casting made of gray iron(cast iron) or aluminum. 这句话的意思是机体是复杂的灰铸铁或铸镁件。
- 4
It is very important that each cylinder should be （） scavenged before the charged air is compressed.